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// **********************************************************************
//
// Copyright (c) 2001
// Mutable Realms, Inc.
// Huntsville, AL, USA
//
// All Rights Reserved
//
// **********************************************************************
class BookI extends Book
{
//
// No read/write mutexes in Java - hence use native
// synchronization.
//
public BookDescription
getBookDescription(Ice.Current current)
{
//
// Immutable.
//
return description;
}
synchronized public String
getRenterName(Ice.Current current)
throws BookNotRentedException
{
if(rentalCustomerName.length() == 0)
{
throw new BookNotRentedException();
}
return rentalCustomerName;
}
synchronized public void
rentBook(String name, Ice.Current current)
throws BookRentedException
{
if(rentalCustomerName.length() != 0)
{
throw new BookRentedException();
}
rentalCustomerName = name;
}
synchronized public void
returnBook(Ice.Current current)
throws BookNotRentedException
{
if(rentalCustomerName.length() == 0)
{
throw new BookNotRentedException();
}
rentalCustomerName = new String();;
}
synchronized public void
destroy(Ice.Current current)
throws DatabaseException
{
try
{
_library.remove(description);
}
catch(Freeze.DBNotFoundException ex)
{
//
// Raised by remove. Ignore.
//
}
catch(Freeze.DBException ex)
{
DatabaseException e = new DatabaseException();
e.message = ex.message;
throw e;
}
}
BookI(LibraryI library)
{
_library = library;
//
// This could be avoided by having two constructors (one for
// new creation of a book, and the other for restoring a
// previously saved book).
//
rentalCustomerName = new String();
}
private LibraryI _library;
}
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